Physics 9702 · AS & A Level · Equilibrium of forces

Equilibrium of forces — practice question

A car with mass $1500\,\text{kg}$ moves downhill at a steady speed of $30\,\text{m s}^{-1}$. The slope makes an angle of $6.0^{\circ}$ with the horizontal, as illustrated. The size of the total resistive force on the car is $2000\,\text{N}$. Determine the power output of the car’s engine.

  • A$14\,\text{kW}$
  • B$60\,\text{kW}$
  • C$110\,\text{kW}$
  • D$380\,\text{kW}$

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